[0,1,2,3,4,5,6,7,8,9,19,29,39,49,59,69,79,89,99,199,299,399,499,599,699,799,899,999,1999,2999,3999,4999,5999,6999,7999,8999,9999,19999,29999,39999,49999,59999,69999,79999,89999,99999,199999,299999,399999,499999]